Average Co-Inventor Count = 1.20
ph-index = 5
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. Citizen Watch Company, Ltd. (6 from 2,002 patents)
2. Citizen Holdings Company, Ltd. (1 from 450 patents)
6 patents:
1. D878935 - Watch
2. D850294 - Watchcase
3. D848288 - Watchcase
4. D819459 - Watch
5. D789808 - Wrist watch
6. D758886 - Wrist watch case